Glass shaping or blowing machine



A. WILZIN, GLASS SHAPING OR BLOWING MACHINE.

APPLICATION FILED MAR. 3,1917.

Patented Apr. 27 1920.

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ARTHUR' WILZIN, OF E:

GLASS SHAPING OR Application filed March 3,

To 07/ whom it may (Jo/1mm 1 Be it known that I, ARTHUR 'VVlLZlN, a citizen of the United States of Ai'nerica, and resident of St. Ouen, Seine, l rance, have invented new and useful II'HPFOVQYHGIHLS in -or in Connection with Glass Shaping or Blowinglrlachines, ot which the following a s 'iecificatien.

This invention relates to a suction head for glass blowing and molding machines ot the type in which the mold is filled with molten glass by means of suction, and has to do more especially with the suctionheads of machines, in which the plunger that cooperates with the ncclz. mold and forms a depression in the glass fora purpose well understood, capable of: longitudinal movewent so that the same may be shifted out of its molding position in order to form a passageway of large cross sectional area through the neck mold during the earlier, and, preferably, the greater portion of the suction or filling operation.

is the object of this invention to provii e an improved and simplified suction head, in which theplunger is normally held out o'l its molding: position, and is then autrmiatically moved into such position at the proper sta e ct the mold. filling operalion. I

in on or that the invention may be more clearly understood, riterence will be made to the accom mnyingr drawing which shows in sectional elevation a form oi? suction head in accordance with the present inven ina be an intco'ral nation of the carriage 9, supports tubular member which is i i guide block and is provided at its lower end with a flange 26.

l he tubular member 2:") is divided into i ipper and lower portion by a horizontal iaphragm 1'32, and located niovably in the wer portion of said men'iber a tubular 11 33 mounted upon a rod which carries at its lower end the plunger 34'') which cooperates with the neck mold to term the mouth of the l'iottle. this rod, which is above the diaphragm 132, screw-threaded, and has a pair elf adjusting nuts 36 mounted thereon, the pur- Specification of Letters Patent.

to move in a vciuical direction in said Tim upper portion of r. on'nn, FRANCE.

BLOWING MACHINE.

Patented Apr. 27, 1920.

191?. Serial NOJl52fi4d.

pose of these nuts being to adjijist the tension of a spring which bears between the diaphragm 132 and the adjusting nuts 36. The tubular member 25 is slotted longitudinally as shown at 37 in order to permit turning of the adjusting nuts 36, and the tension of the spring 38 is so adj sted that the rod. 34 and plunger are normally held in the position indicated in full lines in the drawing, the hole 39 in the diaphragm 132 placing the space between the piston 33 and said diaphragm in communication with the atmosphere.

' A passaiigeway 40 is formed in the flange 26, communicating at its inner end with the interior of the lower portion of the tubular member 25, and having its outer end non mally closed by a pipe plug 41. Connected to this passageway by an opening hi )es and one of these bein under a 7 I'D pressure and the other being below atmospheric pressure. By means of this valre,

the space below the tubular piston may;

either be exhausted for the filling operation. or placed under pressure for the blowing operation. Flange 26 carries a pin 27, upon which the two halves of a neck mold 28 are hinged, said neck mold normally being held closed by a spring 32 which is stretched between two projections 31 fastened re- SPt-HlDiYQlV to the two halves of the neck mold. A. circular sub-flange 30 projects from the flange 26, this sub-flange. being of a conical shape and fitting correspondingly shaped sen1i-circula1' depressions in the t'wo halves of the neck mold, thereby accurately centering the same with respect to the tubular mcmber 25 when the neck mold is closed.

Carriage 9 also carries transverse members l3 and ll both of which projec' down which is freely inio'vable along with the tubular member 25, it follows that the neck mold upon the parison mold, :iforniing a tight join therewith by means of its own weight together with the Weight of the associated parts, the upper surface of the perison mold and the under surface ot-the neck mold being specifically prepared for this function.

\Vlien the parison mold 41:6 to be filled, a supply of molten glass in a "gathering; ladle isv applied to the bottom of the mold, the operator at the same/time manipulating); the two Way valve so as to apply suction to the space in. the tubular member below the piston 33, and thereby causing: the molten glass to enter the parison mold.

During'the earlier, and, pr lei-ably, the greater part oi? this filling; operation, the spring 38 holds the neck forinii'ig plunger in the full line position, thereby permitting the parison mold to rapidly till, due to the rapid exhaustion of the parison mold through the large cross sectional. opening in the nccl: mold. {living to the tenacious quality oi? the molten glass, however, when the mohl becomes nearly full, the suction increases to such an extent that the tension of the spring 38 is overcome and the plunger 35 is forced into the dotted. line position by atmospheric pressure acting on the upper side of the piston 33 through the orifice 39, thereby forming the mouth oi the bottle, and a blowing in the glass. The suction is then shut off by the two way valve and the parison mold is removed. The parison not depending from the neck mold is placed in a finishing mold. Compressed air for blowing the bottle is'then admitted to the pipes 42, 4-0 by means of the two Way valve, whereupon plunger 3!) lifted to its upper position by the action of the air on the lower side of piston 33, if spring 38 has not already lifted it upon the cutting oil of the suction.

The tension of spring 38 is so regulated that the plunger 35 will not operate too soon in the filling operation,

34:3, tiled The cross sectional exhaust present in the neck mold during the filling operation, besides enabling the parison mold to be quickly tilled, also diminishes tile harnr .l ul eliect of any leakage which may take place between the parison audineckmolds.

'ilhe suction head forming the subject of the present invention is disclosed in my copending S. application Serial No. 152,-

liiarch 3, 1.917, but is not therein claimed.

llhat I claim is 2- 1. In a suction head for glass blowing and molding machines, the combination with a neck mold, of aymovable plunger adapted to cooperate therewith, a spring adapted to normally hold said plunger out of. cooperative relationwith said neck mold,

-a parison mold also adapted to cooperate with said neck mold, a pneumatic piston for moving said pioneer into cooperative rela tion with said necl: mold, said piston being; actuated against the tension of said spring by the suction existing in the parison mold only during the latter part of tie filling; thereof, and means for adjusting the tension of said spring to determine the stage in the filling operation at which the plunger is moved into cooperative relation .With said neck mold.

2. In a suction head for glass blowing and molding machines, the combination with a parison mold adapted to be filled by suction, of a neck mold, a movable plunger actuated by the suction in the parison mold during the filling thereof and adapted to be moved thereby into operative relation ship with said neck mold only during the lattcrpart ot' the filling thereof, means adapted to normally resist the suction in the parison mold and to hold said plunger out of cooperative relationship with said neck mold, and means for varying the re sistivity of said plunger to the degree of suction existing in the parison mold.

Dated. this 29th day of January, 1917.

ARTHUR WH'JZIN. 

